CN116066684A

CN116066684A - Lifting structure, fan applying lifting structure and air conditioner

Info

Publication number: CN116066684A
Application number: CN202310271300.2A
Authority: CN
Inventors: 汪建; 黄玉优; 赵敏娜
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-05-05

Abstract

The invention discloses a lifting structure, a fan applying the same and an air conditioner, wherein the lifting structure is used for realizing lifting and sinking of a device to be lifted, the device to be lifted comprises a bottom plate and a top plate which are connected through upright posts, and a body to be lifted is arranged between the bottom plate and the top plate; the lifting structure comprises a base and a rotating assembly, the device to be lifted is positioned on the base, one end of the rotating assembly is connected with the base, and the other end of the rotating assembly is connected with the top plate; the base is provided with a through hole, and the rotating assembly rotates to enable the device to be lifted to pass through the through hole so as to realize lifting and sinking; the lifting structure provided by the invention changes the traditional mode of lifting by a plurality of people into the lifting mode by a single person, the lifting process is simple and convenient, the labor cost is saved, the safety accident caused by the labor in the lifting process is avoided, and the operation is safer, more reliable and more efficient.

Description

Lifting structure, fan applying lifting structure and air conditioner

Technical Field

The invention belongs to the technical field of air conditioners, and relates to a lifting structure, a fan applying the lifting structure and an air conditioner.

Background

The air conditioner of the machine room can provide reliable working temperature and humidity for the machine room, and can purify air in the machine room, so that the air conditioner is common air conditioning equipment; the machine room air conditioner mainly comprises a lower air outlet type air conditioner, when the lower air outlet type air conditioner operates, a fan needs to be sunk into a static pressure box under the floor, and when the fan is maintained, the fan needs to be lifted to the ground from the floor and then taken out of the machine set.

In order to realize the function, the traditional mode is to carry out the subsidence and the lifting of fan through the manual work, and because fan weight is great, lift fan needs many people to cooperate to accomplish at every turn, not only extravagant cost of labor, and the personnel can't be simple nimble realization pause operation in the in-process of lift fan moreover, if the fan turns on one's side or the condition such as operating personnel physical weakness appears, then can't carry out corresponding adjustment, has the potential safety hazard.

Disclosure of Invention

In view of the above, the invention provides a lifting structure, a fan and an air conditioner using the same, and solves the problem of potential safety hazards existing in the traditional method of realizing the lifting of the fan through cooperation of multiple people.

In order to solve the above problems, according to one aspect of the present application, an embodiment of the present invention provides a lifting structure for lifting and sinking a device to be lifted, where the device to be lifted includes a bottom plate and a top plate connected by a column, and a body to be lifted is between the bottom plate and the top plate; the lifting structure comprises a base and a rotating assembly, the device to be lifted is positioned on the base, one end of the rotating assembly is connected with the base, and the other end of the rotating assembly is connected with the top plate; the base is provided with a through hole, and the rotating assembly rotates to enable the device to be lifted to pass through the through hole so as to achieve lifting and sinking.

In some embodiments, the lifting structure further comprises a fixing assembly capable of fixing the device to be lifted on the base when the device to be lifted is in the lifted state.

In some embodiments, the rotating assembly includes a screw, a first connection portion and a second connection portion, one end of the screw being mated with the first connection portion, the other end of the screw being mated with the second connection portion; the first connecting part is positioned in the base, and the second connecting part is positioned in the top plate; or the first connecting part is positioned in the top plate, and the second connecting part is positioned in the base.

In some embodiments, the first connection is a nut, the second connection is a bearing, one end of the screw is mated with the nut, and the other end of the screw is mated with the bearing.

In some embodiments, when the first connection is located in the base and the second connection is located in the top plate, a convex hull is provided in the top plate, and the bearing is located in the convex hull; and H1> H2+H2, wherein H1 is the height of the convex hull, H2 is the height of the bearing, and H3 is the height of the nut protruding out of the upper surface of the base.

In some embodiments, the convex hull is a necked-down structure for preventing the bearing from passing out of the convex hull, and the convex hull is an interference fit with the bearing.

In some embodiments, the base has a bearing recess for securing the bearing when the first connection is located in the top plate and the second connection is located in the base; and H4> H5+H26, wherein H4 is the depth of the bearing groove, H5 is the height of the bearing, and H6 is the height of the nut protruding out of the upper surface of the top plate.

In some embodiments, the base further has a screw groove for receiving the screw, the screw groove having a depth equal to or greater than an outer diameter of the screw.

In some embodiments, the screw has a smooth section that passes through the bearing and a threaded section that mates with the nut.

In some embodiments, the junction of the smooth section and the threaded section is provided with a boss having an outer diameter greater than an inner diameter of the bearing bore of the bearing.

In some embodiments, two rotating assemblies are provided, one ends of the two rotating assemblies are respectively located at two sides of the base, and the other ends of the two rotating assemblies are respectively connected to two sides of the top plate.

In some embodiments, the securing assembly includes two securing plates having a first face secured in connection with the base and a second face secured in connection with the base.

According to another aspect of the present application, an embodiment of the present invention provides a fan, which includes the above-mentioned lifting structure.

According to another aspect of the present application, an embodiment of the present invention provides an air conditioner, which includes the blower.

Compared with the prior art, the lifting structure has at least the following beneficial effects:

the lifting structure is used for realizing lifting and sinking of a device to be lifted, the device to be lifted comprises a bottom plate and a top plate which are connected through upright posts, and a body to be lifted is arranged between the bottom plate and the top plate; the lifting structure comprises a base and a rotating assembly, the device to be lifted is positioned on the base, one end of the rotating assembly is connected with the base, and the other end of the rotating assembly is connected with the top plate; the base is provided with a through hole, and the rotating assembly rotates to enable the device to be lifted to pass through the through hole so as to realize lifting and sinking; when the device to be lifted is required to sink, the rotating assembly is screwed along the first direction, the device to be lifted slowly sinks under the action of gravity and rotation force, and meanwhile, the base is slowly close to the top plate, so that the device to be lifted sinks; when the device to be lifted is required to be lifted, the rotating assembly is screwed along the second direction, the rotating assembly slowly jacks up the device to be lifted, and meanwhile, the base is slowly separated from the top plate, so that the device to be lifted is lifted; wherein the first direction is opposite to the second direction; that is, the lifting structure provided by the invention changes the traditional mode of lifting by a plurality of people into lifting by a single person, the lifting process is simple and convenient, the labor cost is saved, the safety accident caused by manpower in the lifting process is avoided, and the operation is safer, more reliable and more efficient.

The fan provided by the invention is designed based on the lifting structure, and the beneficial effects of the lifting structure are referred to and are not described in detail herein.

The air conditioner provided by the invention is designed based on the fan, and the beneficial effects of the fan are referred to and are not described in detail herein.

The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a lifting structure in a lifted state according to an embodiment of the present invention;

FIG. 2 is a schematic view of a lifting structure in a sinking state according to an embodiment of the present invention;

FIG. 3 is a top view of a base in a lifting structure according to an embodiment of the present invention;

FIG. 4 is a top view of a top plate in a lifting structure provided by an embodiment of the present invention;

FIG. 5 is a side view of a top plate in a lifting structure provided by an embodiment of the present invention;

fig. 6 is a schematic structural view of a screw in a lifting structure according to an embodiment of the present invention;

FIG. 7 is a front view of a lifting structure provided by an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a lifting structure provided by an embodiment of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8 at A;

FIG. 10 is a schematic view of another lifting structure according to an embodiment of the present invention in a lifted state;

FIG. 11 is a schematic view of another structure of a lifting structure in a sinking state according to an embodiment of the present invention;

FIG. 12 is a partial enlarged view at B in FIG. 11;

FIG. 13 is a schematic view of another structure of a lifting structure in a sinking state according to an embodiment of the present invention;

FIG. 14 is another top view of a base in a lifting structure provided by an embodiment of the present invention;

FIG. 15 is another side view of a base in a lifting structure provided by an embodiment of the present invention;

FIG. 16 is a diagram showing the cooperation between a base and a second connecting member in a lifting structure according to an embodiment of the present invention;

FIG. 17 is a schematic view of another structure of a screw in a lifting structure according to an embodiment of the present invention;

fig. 18 is a cross-sectional view of a lifting structure provided by an embodiment of the present invention.

Wherein:

1. a device to be lifted; 2. a base; 3. a rotating assembly; 4. a fixing assembly; 11. a column; 12. a bottom plate; 13. a top plate; 14. a body to be lifted; 21. a through hole; 22. a bearing groove; 23. a screw groove; 31. a screw; 32. a first connection portion; 33. a second connecting portion; 131. convex hulls; 311. a smooth section; 312. a threaded section; 313. a boss; 314. and an inner hexagonal hole.

Detailed Description

In order to further describe the technical means and effects adopted for achieving the preset aim of the invention, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the application of the invention with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

In the description of the present invention, it should be clear that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order; the terms "vertical," "transverse," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "horizontal," and the like are used for indicating an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description of the present invention, and do not mean that the apparatus or element referred to must have a specific orientation or position, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Example 1

The embodiment provides a lifting structure, as shown in fig. 1-18, wherein the lifting structure is used for realizing lifting and sinking of a device 1 to be lifted, the device to be lifted comprises a bottom plate 12 and a top plate 13 which are connected through a stand column 11, and a body 14 to be lifted is arranged between the bottom plate 12 and the top plate 13; the lifting structure comprises a base 2 and a rotating assembly 3, the device 1 to be lifted is positioned on the base 2, one end of the rotating assembly 3 is connected with the base 2, and the other end of the rotating assembly 3 is connected with the top plate 13; the base 2 is provided with a through hole 21, and the rotating assembly 3 rotates to enable the device 1 to be lifted to pass through the through hole 21 so as to achieve lifting and sinking.

Specifically, the device to be lifted 1 in this embodiment may be a fan, or may be other weights; in order to realize lifting and sinking of the heavy objects, a bottom plate 12 and a top plate 13 are required to be arranged, the bottom plate 12 and the top plate 13 are connected through a stand column 11, the bottom plate 12 and the top plate 13 are horizontally arranged up and down, and the heavy objects, namely a body 14 to be lifted, are placed in a cavity between the bottom plate 12 and the top plate 13; in a specific implementation, the area of the top plate 13 is larger than the area of the bottom plate 12, so that when the bottom plate 12 and the top plate 13 are horizontally opposite to each other, a portion extending from a position outside the top plate 13 can avoid the bottom plate 12 and be connected to the base 2.

When the device 1 to be lifted needs to be sunk, the rotating assembly 3 is screwed along the first direction, the device 1 to be lifted slowly sinks under the action of gravity and rotation force, and meanwhile, the base 2 and the top plate 13 are slowly close to each other, so that the device 1 to be lifted is sunk, as shown in fig. 2; when the lifting device 1 needs to be lifted, the rotating assembly 3 is screwed along the second direction, the rotating assembly 3 slowly jacks up the lifting device 1, and meanwhile, the base 2 is slowly separated from the top plate 13, so that the lifting of the lifting device 1 is realized, as shown in fig. 1; wherein the first direction is opposite to the second direction; that is, the lifting structure provided by the embodiment changes the traditional mode of lifting by a plurality of people into lifting by a single person, the lifting process is simple and convenient, the labor cost is saved, the safety accident caused by the labor in the lifting process is avoided, and the operation is safer, more reliable and more efficient.

In a specific embodiment, as shown in fig. 1, the lifting structure further includes a fixing component 4, where the fixing component 4 can fix the device 1 to be lifted on the base 2 when the device 1 to be lifted is in a lifted state.

In order to increase the reliability in the lifted state, a fixing assembly 4 is added, wherein the fixing assembly 4 comprises two fixing plates, and the fixing plates are provided with a first surface fixedly connected with the base 2 and a second surface fixedly connected with the bottom plate 12; more specifically, the fixing assembly 4 includes a first fixing plate including at least two faces, one of which (a first face) is fixed to the base 2 by a screw and the other face (a second face) is fixed to the front side of the base plate 12 by a screw; the second fixing plate comprises at least two surfaces, wherein one surface (first surface) is fixed on the base 2 through a screw, and the other surface (second surface) is fixed on the rear side of the bottom plate 12 through a screw; in this way, the fixing of the device 1 to be lifted in the lifted state is achieved by the front and rear fixing plates.

In addition, in order to enable the fixing plate to have higher reliability, after one side of the first surface is vertically connected with one side of the second surface, fixing pieces are added at two ends, and the fixing pieces enable connection of the first surface and the second surface to be more reliable.

When the device 1 to be lifted needs to be submerged, the fixing component 4 is firstly removed, then the rotating component 3 is screwed, and after the sinking is completed, the top plate 13 is fixed on the base 2 through bolts; when the device 1 to be lifted needs to be lifted, the bolts for fixing the top plate 13 and the base 2 are detached firstly, then the rotating assembly 3 is reversely screwed, and after the lifting is completed, the base 2 and the bottom plate 12 are fixed together through the fixing assembly 4.

In a specific embodiment, as shown in fig. 2-4, the rotating assembly 3 includes a screw 31, a first connecting portion 32 and a second connecting portion 33, one end of the screw 31 is mated with the first connecting portion 32, and the other end of the screw 31 is mated with the second connecting portion 33; the first connecting part 32 is positioned in the base 2, and the second connecting part 33 is positioned in the top plate 13; or the first connecting part 32 is positioned in the top plate 13, and the second connecting part 33 is positioned in the base 2; in this embodiment, in order to achieve the engagement of the screw 31 with the base 2 and the top plate 13, the first connecting portion 32 and the second connecting portion 33 are added.

In a specific embodiment, the first connecting portion 32 is a nut, the second connecting portion 33 is a bearing, one end of the screw 31 is engaged with the nut, and the other end of the screw 31 is engaged with the bearing.

While there are a number of different options regarding the specific placement of the nut and bearing, in particular:

1-9, the first connecting portion 32 is located in the base 2, the second connecting portion 33 is located in the top plate 13, and the nut is located in the base 2, and the bearing is located in the top plate 13; in this arrangement, as shown in fig. 2 and 5, a convex hull 131 is provided in the top plate 13, and the bearing is located in the convex hull 131; and H1> h2+h3, where H1 is the height of the convex hull 131, H2 is the height of the bearing, and H3 is the height of the nut protruding from the upper surface of the base 2.

The convex hull 131 is used for fixing a bearing, the height of the convex hull 131 is required to be larger than the sum of the height of the bearing and the height of the upper surface of the base 2 protruding through a riveted nut on the base 2, so that after the lifting device 1 is sunk, the top plate 13 and the base 2 can be attached to each other, and the sealing is realized, and air leakage is prevented; in addition, the central portion of the convex hull 131 is a through hole, the diameter of the through hole is smaller than the outer diameter of the bearing, the bearing cannot pass through the convex hull 131 upwards, and the screw 31 can pass through the through hole of the convex hull 131. In addition, the convex hull 131 is of a necking structure, and is used for preventing the bearing from penetrating out of the convex hull 131, and the convex hull 131 and the bearing are in interference fit.

In addition, as shown in fig. 6, the screw 31 has a smooth section 311 and a threaded section 312, the smooth section 311 passing through the bearing, the threaded section 312 being engaged with the nut; a boss 313 is arranged at the joint of the smooth section 311 and the threaded section 312, and the outer diameter of the boss 313 is larger than the inner diameter of the bearing hole of the bearing.

That is, in the first structure, the bearing is provided in the convex hull 131 of the top plate 13, one end of the screw 31 having the boss 313 passes through the bearing, the screw section 312 is screwed into the rivet nut on the base 2, the bearing plays a role in facilitating rotation of the screw 31 and supporting the device 1 to be lifted, and when the screw 31 rotates in the nut, the bearing at the upper end of the screw 31 can rotate the screw 31; the bearing is placed in the convex hull 131, and a necking is formed at the upper end of the convex hull 131, so that the bearing can be prevented from penetrating through the convex hull 131; in addition, because the bearing is arranged in the convex hull 131, the bearing and the convex hull 131 can be in interference fit or clearance fit due to the rotation, and the interference fit is better.

And, the diameter of smooth section 311 of screw 31 is less than the diameter of screw section 312, and smooth section 311 can pass the bearing hole, with bearing clearance fit, and when boss 313 made screw 31 rotatory screw 31 on the screw 31, screw section 312 can't pass the bearing hole to can let wait that elevating gear reciprocates along with screw 31. In addition, the upper end of the screw 31 is provided with an internal hexagonal hole 314 (or other structure facilitating rotation of the screw) for rotating the screw 31.

When the scheme is assembled, the screw 31 is screwed into the nut, so that the length of the part of the screw 31 above the base 2 is lower than the height of the device 1 to be lifted, and the device 1 to be lifted is convenient to assemble. Then the bearing is fixed into the convex hull 131 of the top plate 13, the fixing component 4 is assembled on the base 2, then the device 1 to be lifted is placed on the base 2, the screw rod is centered with the bearing hole on the top plate 13, the screw rod 31 is rotated, the screw rod 31 penetrates through the bearing, and finally the fixing component 4 and the base 2 are fixed by bolts, so that the assembly is completed, as shown in fig. 1.

When the lifting device 1 needs to sink, the fixing component 4 is removed firstly, then the screw 31 is rotated for a plurality of times by using the inner hexagonal tool, the screw 31 rotates clockwise, under the action of gravity of the lifting device 1 and the driving of the rotation of the screw 31, the lifting device 1 slowly moves downwards along with the screw 31, the sinking of the lifting device 1 is completed, finally the top plate 13 is fixed on the base 2 by using the bolts, and the screw 31 does not need to be removed after sinking, as shown in fig. 2.

When the lifting device 1 needs to be lifted, the bolt fixed between the top plate 13 and the base 2 is removed firstly, then the screw 31 is rotated anticlockwise by using the inner hexagonal tool, the screw 31 moves upwards, the screw 31 cannot penetrate through the bearing due to the boss 313 on the screw 31, the diameter of the bearing is larger than the through hole in the center of the convex hull 131 on the top plate 13, so that when the screw 31 rotates anticlockwise after being matched with the bearing, the screw 31 slowly pushes the lifting device 1 upwards, the lifting device 1 is moved upwards along with the screw 31, the lifting of the lifting device 1 is finally completed, and finally the lifting device 1 is fixed on the base 2 by using the fixing component 4.

10-18, the first connecting portion 32 is located in the top plate 13, the second connecting portion 33 is located in the base 2, and the nut is located in the top plate 13, and the bearing is located in the base 2; in this arrangement, as shown in fig. 15, the base 2 has a bearing groove 22 for fixing the bearing; and H4> H25+H26, wherein H4 is the depth of the bearing groove 22, H5 is the height of the bearing, and H6 is the height of the nut protruding out of the upper surface of the top plate 13, so that the top plate 13 is attached and sealed with the base 2, and air leakage is prevented.

In a specific embodiment, the base 2 is further provided with a screw groove 23 for accommodating the screw, and the depth of the screw groove 23 is greater than or equal to the outer diameter of the screw.

In a specific embodiment, the screw 31 has a smooth section 311 and a threaded section 312, the smooth section 311 passing through the bearing, the threaded section 312 mating with the nut; the lower end of the screw 31 has a portion with a diameter smaller than that of the screw 31 for clearance fit with the bearing. In addition, the upper end of the screw 31 is provided with an internal hexagonal hole 314 (or other structure facilitating rotation of the screw) for rotating the screw 31.

During the assembly of the scheme, an upper bearing is assembled in the bearing groove 22 of the base 2, the fixing component 4 is assembled at the bottom of the device 1 to be lifted, and then the screw 31 is screwed into the nut, so that the length of the part of the screw 31 below the top plate 13 is slightly smaller than the height of the device 1 to be lifted, and the device 1 to be lifted is convenient to assemble. Then the device 1 to be lifted is placed on the base 2, the screw 31 is centered with the bearing of the base 2, the screw 31 is rotated, the smooth section 311 at the lower end of the screw 31 penetrates through the bearing hole, and finally the fixing component 4 is fixed with the base 2 by bolts, so that the assembly is completed, as shown in fig. 10.

When the lifting device 1 needs to sink, the fixing component 4 is removed firstly, then the screw 31 is rotated by using the inner hexagonal tool, and the lower end of the screw 31 and the bearing are fixed in the bearing groove 22 of the base 2, so that the screw cannot move downwards; finally, the top plate 13 is fixed on the base 2 through bolts. After the sinking of the lifting device 1 is completed, the screw 31 protrudes out of the top plate 13 by the height, and the screw 31 can be screwed out and placed in the screw groove 23 of the base 2, as shown in fig. 13.

When the lifting device 1 needs to be lifted, firstly, the screw 31 is taken out from the screw groove 23 and screwed into the riveting nut of the base 2, then the bolt for fixing the top plate 13 is removed, then the screw 31 is rotated anticlockwise by using a hexagon tool, because the lower end of the screw 31 and the bearing are fixed in the bearing groove 22 of the base 2 and cannot move downwards, when the screw 31 is rotated anticlockwise, the riveting nut on the top plate 13 moves upwards relative to the screw 31, and then the lifting device 1 is driven to move upwards, so that the lifting device 1 moves upwards slowly along with the screw 31, and finally the lifting of the lifting device 1 is completed, as shown in fig. 10; finally, the device 1 to be lifted is fixed on the base 2 by the fixing component 4.

In a specific embodiment, two rotating assemblies 3 are provided, one ends of the two rotating assemblies 3 are respectively located at two sides of the base 2, and the other ends of the two rotating assemblies 3 are respectively connected to two sides of the top plate 13.

The two rotating assemblies 3 can enable the lifting device 1 to stably descend and lift, and when the rotating assemblies 3 are operated, the rotating assemblies 3 on two sides can be operated in turn.

The lifting structure provided by the embodiment realizes the ascending and sinking of the lifting device by adopting the combination mode of the screw and the bearing, does not need to increase motor driving equipment, and is simple to operate and low in cost.

Example 2

The present embodiment provides a fan, which includes the lifting structure of embodiment 1.

That is, the device to be lifted 1 in embodiment 1 is a fan, and the body to be lifted 14 is a fan body; according to the lifting structure in the embodiment 1, the lifting fan can be completed through a single person instead of a mode of realizing the lifting fan by multiple persons, the lifting process is simple and convenient, the labor cost is saved, and safety accidents caused by manpower in the lifting process are avoided, so that the operation is safer and more reliable.

Of course, the lifting structure in embodiment 1 can be used to lift other weights in addition to the lifting fan assembly.

Example 3

The present embodiment provides an air conditioner including the blower of embodiment 2.

The air conditioner provided in this embodiment applies the fan in embodiment 2, so that it has all the advantages of the lifting structure in embodiment 1 and the fan in embodiment 2.

In summary, it is easily understood by those skilled in the art that the above-mentioned advantageous features can be freely combined and overlapped without conflict.

The above is only a preferred embodiment of the present invention, and the present invention is not limited in any way, and any simple modification, equivalent variation and modification made to the above embodiment according to the technical substance of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. The lifting structure is characterized by being used for realizing lifting and sinking of a device to be lifted, wherein the device to be lifted comprises a bottom plate and a top plate which are connected through upright posts, and a body to be lifted is arranged between the bottom plate and the top plate; the lifting structure comprises a base and a rotating assembly, the device to be lifted is positioned on the base, one end of the rotating assembly is connected with the base, and the other end of the rotating assembly is connected with the top plate; the base is provided with a through hole, and the rotating assembly rotates to enable the device to be lifted to pass through the through hole so as to achieve lifting and sinking.

2. The lifting structure of claim 1, further comprising a securing assembly capable of securing the device to be lifted to the base when the device to be lifted is in a raised condition.

3. The lifting structure of claim 2, wherein the rotating assembly comprises a screw, a first connection portion and a second connection portion, one end of the screw being engaged with the first connection portion, the other end of the screw being engaged with the second connection portion; the first connecting part is positioned in the base, and the second connecting part is positioned in the top plate; or the first connecting part is positioned in the top plate, and the second connecting part is positioned in the base.

4. A lifting structure according to claim 3, wherein the first connection portion is a nut, the second connection portion is a bearing, one end of the screw is engaged with the nut, and the other end of the screw is engaged with the bearing.

5. The lifting structure of claim 4, wherein when the first connection portion is located in the base and the second connection portion is located in the top plate, a convex hull is provided in the top plate, and the bearing is located in the convex hull; and H1> H2+H2, wherein H1 is the height of the convex hull, H2 is the height of the bearing, and H3 is the height of the nut protruding out of the upper surface of the base.

6. The lifting structure of claim 5, wherein the convex hull is a necked-down structure for preventing the bearing from passing out of the convex hull, and wherein the convex hull is in an interference fit with the bearing.

7. The lifting structure of claim 4, wherein the base has a bearing recess for fixing the bearing when the first connection portion is located in the top plate and the second connection portion is located in the base; and H4> H5+H26, wherein H4 is the depth of the bearing groove, H5 is the height of the bearing, and H6 is the height of the nut protruding out of the upper surface of the top plate.

8. The lifting structure of claim 7, wherein the base further has a screw groove for receiving the screw, the screw groove having a depth equal to or greater than an outer diameter of the screw.

9. A lifting structure as claimed in claim 6 or 8, wherein the screw has a smooth section passing through the bearing and a threaded section cooperating with the nut.

10. The lifting structure of claim 9, wherein a boss is provided at a junction of the smooth section and the threaded section, the boss having an outer diameter greater than an inner diameter of a bearing bore of the bearing.

11. The lifting structure according to any one of claims 1 to 8, wherein two rotating assemblies are provided, one ends of the two rotating assemblies are respectively located at two sides of the base, and the other ends of the two rotating assemblies are respectively connected to two sides of the top plate.

12. The lifting structure of any one of claims 2-8, wherein the securing assembly includes two securing plates having a first face fixedly coupled to the base and a second face fixedly coupled to the base.

13. A wind turbine comprising the lifting structure of any one of claims 1-12.

14. An air conditioner comprising the blower of claim 13.